A lifting platform and a drone with the platform

Abstract

The present invention discloses a liftable pan-tilt platform and a drone with the pan-tilt platform. The liftable pan-tilt platform comprises a transmission device, a lifting rod and a drone connecting base. The bottom of the transmission device is connected to the drone connecting base, the drone is mounted on the drone base, and a retractable lifting rod is mounted on the top of the transmission device. The end face of the highest level of the lifting rod is connected to a camera. When the drone flies near a bridge, in order to capture a picture closer to the bridge, the lifting rod can be extended so that the camera is close enough to the shell to capture a clear picture of the bridge. This ensures that the drone's flight safety can be guaranteed while capturing a clear picture of the bridge, making it convenient for maintenance personnel to clearly observe the damage of the bridge.

Description

Technical Field

[0001] The invention belongs to the technology of special bridge inspection drones, and in particular relates to a liftable pan-tilt platform. Background Art

[0002] As time goes by, more and more bridges in China are facing the risk of aging and collapse. In order to ensure the safety of people's livelihood, bridge inspection work is urgent. Modern inspection methods mainly use various autonomous mobile robots. One of the solutions is to use small and medium-sized drones equipped with high-definition cameras to scan near the bridge structure.

[0003] When conducting comprehensive inspections of bridges using drones, some bridges are complex and difficult to fly close to. As we all know, image clarity is closely related to shooting distance, and when it's impossible to get close, there's a problem with not being able to guarantee clarity. Summary of the Invention

[0004] The purpose of the present invention is to provide a liftable pan-tilt platform to solve the problem of getting a camera as close to the bridge as possible to ensure the flight safety of the UAV and ensuring the clarity of the shooting during the bridge inspection process.

[0005] The present invention adopts the following technical solutions:

[0006] The present invention provides a liftable gimbal, which is installed on a drone. The liftable gimbal is composed of a transmission device 101, a multi-stage lifting rod 102 and a drone connection base 10. The transmission device 101 includes: a reduction motor 6, a first gear 7 and a second gear 9. The reduction motor 6 is connected to the first gear 7, and the first gear 7 is connected to the second gear 9. The tooth width of the second gear 9 is greater than that of the first gear 7; the second gear 9 is also connected to a single-mode nylon hard mold rack. One end of the single-mode nylon hard mold rack is connected to the second gear 9, and the other end is connected to the end face of the first stage rod 15 of the lifting rod 102, so as to realize the connection and control of the lifting rod 102. Telescopic; the lifting rod 102 includes a first-level rod 15, a second-level rod 16, a third-level rod 17, a fourth-level rod 18, and a fifth-level rod 19, and each rod end hole is provided with a limit slot 20. The first-level rod 15, the second-level rod 16, the third-level rod 17, the fourth-level rod 18 and the fifth-level rod 19 are connected in sequence, and any two rods can be telescopic and connected through the limit slots 20 at their respective end holes. The fifth rod 19 is fixed with a camera at one end away from the fourth rod, and the position of the camera can be determined according to the extension of the lifting rod; the bottom of the transmission device 101 is installed with a connecting base 10 of a drone, and the drone connecting base 10 is connected to the drone.

[0007] Optionally, the transmission transposition also includes: a first shaft 4, a rack limiting wheel 5, a second shaft 3, a rack pressure ring 8 and a housing b14. The first shaft 4 is also installed on one side of the second gear 9. The first shaft 4 is fixedly connected to the housing b14 and is used to fix the rack limiting wheel 5; a second shaft 3 is also provided in the center of the second gear 9, and the second shaft 3 is fixedly connected to the housing b14; a rack pressure ring 8 is also installed on the upper end of the second gear 9.

[0008] Optionally, the rack cover 13 is sleeved on the second gear 9, and one end of the shaft cover 12 is sleeved on the second shaft 3 to fix the rack cover 13 and the second gear 9; the other end of the shaft cover 12 is connected to the shell a, and the shell a11 and the shell b14 are fixedly connected through the cover shaft 12.

[0009] Optionally, the transmission device 101 further comprises an external shell, the upper end surface of the shell is provided with a motor lead hole 1 and a lifting rod connection hole 2, and the lower end surface of the shell is mounted with a drone connection base 10.

[0010] Optionally, the reduction motor 6 has an encoder and a Hall sensor.

[0011] The present invention also provides a drone having the above-mentioned elevating platform. The beneficial effect of the present invention is that the elevating platform includes a transmission device 101, a lifting rod, and a drone connection base. The bottom of the transmission device 101 is connected to the drone connection base, the drone is mounted on the drone base, and a retractable lifting rod is installed on the top of the transmission device 101. The end face of the highest level of the lifting rod is connected to a camera. When the drone flies near the bridge, in order to capture a picture closer to the bridge, the lifting rod can be extended so that the camera is close enough to the housing to capture a clear picture of the bridge. This ensures the safety of the drone's flight while also capturing a clear picture of the bridge, making it easier for maintenance personnel to clearly observe the damage to the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the overall structure of a liftable pan / tilt platform provided by the present invention;

[0013] Figure 2 A schematic diagram of the structure of a UAV lifting mast provided by the present invention;

[0014] Figure 3 A schematic structural diagram of a transmission transposition provided by the present invention;

[0015] Figure 4 The present invention provides a schematic diagram of the assembly of a transmission device.

[0016] Among them: 1. Motor lead hole; 2. Lifting rod connection hole; 3. Second axis; 4. First axis; 5. Rack limit wheel; 6. Reducer motor; 7. First gear; 8. Rack pressure ring; 9. Second gear; 10. UAV connection base; 11. Shell a; 12. Shaft pressure cover; 13. Rack pressure cover; 14. Shell b. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0020] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0021] The present invention provides a liftable platform, such as Figure 1As shown, the liftable gimbal that can be mounted with a drone consists of a transmission device 101, a multi-stage lifting rod 102, and a drone connection base 10. The top of the transmission device 101 is connected to the lifting rod 102, and the drone connection base 10 is installed at the bottom of the transmission device 101. The drone connection base 10 is used to connect the drone. The end surface of the multi-stage lifting rod 102 is used to install a camera. The extension and retraction of the lifting rod 102 can be controlled by the transmission device 101 to adjust the position of the camera at the end of the lifting rod 102. In a specific embodiment, when the drone has flown to a preset safe position from a building, such as a bridge, in order to shoot closer to the bridge, the transmission device 101 can be used to control the extension of the lifting rod 102 to drive the camera to a position closer to the bridge for shooting, thereby capturing a clear image of the bridge.

[0022] like Figure 2 As shown, in one embodiment, the lifting rod 102 structure consists of five rods. The lifting rod 102 is divided into a first-level rod 15, a second-level rod 16, a third-level rod 17, a fourth-level rod 18, a fifth-level rod 19 and a limiting slot 20 according to their positions. The first-level rod 15, the second-level rod 16, the third-level rod 17, the fourth-level rod 18 and the fifth-level rod 19 are connected in sequence, wherein any level of rods is a hollow rod, and the higher the level, the smaller the diameter of the rod. When the rod is raised, any two levels of rods can be telescopic and connected through the limiting slot 20 at their respective end holes. One end face of the fifth rod 19 is fixed with a camera.

[0023] It should be noted that the higher the level of the rod, the smaller the diameter, to ensure that the five-stage rod can be fully retracted to the first-stage rod when not raised or lowered. There are limit slots 20 between the rods to ensure that the upper-stage rod will not fall off when the rods are fully extended. Furthermore, the first-stage rod 15 is at the bottom and can be Figure 3 The two lifting rod connection holes shown are assembled with the transmission device 101, and the transmission device 101 controls the extension of the lifting rod to determine the extension length, ensuring that the camera installed at the end of the lifting rod 102 is close to the building to be photographed to take a clear picture.

[0024] In one embodiment, if Figure 3 As shown, the transmission device 101 in the elevating pan / tilt head includes a reduction motor 6 connected to a first gear 7, which is in turn connected to a second gear 9. The second gear 9 has a larger tooth width than the first gear 7. It should be noted that the reduction motor 6 can generate a large torque, ensuring sufficient power for the lifting rod 102. The second gear 9 is also connected to a single-mode nylon hard-molded rack. One end of the single-mode nylon hard-molded rack is connected to the second gear 9, and the other end is connected to the end face of the first stage rod 15 of the lifting rod 102. It should be noted that when the single-mode nylon hard-molded rack is not extended, it meshes with the second gear 9 in a multi-turn manner.

[0025] In one embodiment, the transmission device 101 further comprises an external housing, the upper end surface of which is provided with a motor lead hole 1 and a lifting rod connection hole 2, specifically, the housing b14. The motor lead hole 1 allows for the lead wires of the speed motor 6 to be led out and fixed; the lifting rod 102 connection hole 2 allows for the assembly of the lifting rod 102 with the transmission device 101; the lower end surface of the housing is provided with a drone connection base 10, which is used to connect to the drone;

[0026] In one embodiment, the transmission transposition also includes: a first shaft 4 is also installed on one side of the second gear 9, the first shaft 4 is fixedly connected to the shell b14 and is used to fix the rack limiting wheel 5, the rack limiting wheel 5 is used to ensure that the single-mode nylon hard mold rack can be tightly engaged with the second gear 9 when extending or retracting; a second shaft 3 is also provided in the center of the second gear 9, the second shaft 3 is fixedly connected to the shell b14, and is used to fix the second gear 9; a rack pressure ring 8 is also installed on the upper end of the second gear 9 to ensure that the single-mode nylon hard mold rack will not slip on the second gear 9.

[0027] like Figure 4 As shown, in one embodiment, the rack cover 13 is pressed onto the second gear 9, and one end of the shaft cover 12 is sleeved on the second shaft 3 to fix the rack cover 13 and the second gear 9; the other end of the shaft cover 12 is connected to the housing a, and the housing a11 and the housing b14 are pressed together through the cover shaft 12 to achieve assembly.

[0028] In one embodiment, the reduction motor 6 has an encoder and a Hall sensor. It should be noted that due to the Hall sensor of the reduction motor 6 with an encoder, further, the Hall sensor can detect the speed and number of rotations of the first gear 7 and the second gear 9, and the sensor data can be transmitted through the lead. Based on this, a single-chip microcomputer circuit for controlling the window hole device and the lifting rod 102 can be designed, so that the position and speed of the lifting rod 102 can be controlled.

[0029] The present invention also provides a drone having a liftable platform in any one of the above embodiments.

[0030] It should be noted that when the drone is connected to the transmission device 101 and the lifting rod 102 through the drone connection base 10, when the drone is used to photograph a building, the drone can be parked in a suitable and safe position for photographing.

[0031] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A liftable platform, characterized in that: The utility model discloses a lifting platform installed on a drone, and the lifting platform is composed of a transmission device (101), a multi-stage lifting rod (102) and a drone connecting base (10), wherein the transmission device (101) comprises: a reduction motor (6), a first gear (7) and a second gear (9), wherein the reduction motor (6) is connected to the first gear (7), the first gear (7) is connected to the second gear (9), and the tooth width of the second gear (9) is larger than that of the first gear (7); the second gear (9) is also connected to a single-mode nylon hard mold rack, one end of the single-mode nylon hard mold rack is connected to the second gear (9), and the other end is connected to the end face of the first stage rod (15) of the lifting rod (102), so as to realize the connection and control of the extension and retraction of the lifting rod (102); the lifting rod (102) comprises a first stage rod (15), a second stage rod (16), a third stage rod (17), a fourth stage rod (18), and a fourth stage rod (19). 8) A fifth-level rod (19), wherein a limit slot (20) is provided at the end hole of each level rod, the first-level rod (15), the second-level rod (16), the third-level rod (17), the fourth-level rod (18) and the fifth-level rod (19) are connected in sequence, and any two level rods are retractable and connected through the limit slot (20) at their respective end holes, and the fifth-level rod (19) is fixed with a camera at one end away from the fourth-level rod, and the position of the camera can be determined according to the extension of the lifting rod; the connecting base (10) of the UAV is installed at the bottom of the transmission device (101), and the UAV connecting base (10) is connected to the UAV.

2. The liftable platform according to claim 1, wherein: The transmission device (101) further comprises: a first shaft (4), a rack limiting wheel (5), a second shaft (3), a rack pressure ring (8) and a housing b (14); the first shaft (4) is mounted on one side of the second gear (9); the first shaft (4) is fixedly connected to the housing b (14) and the first shaft (4) is used to fix the rack limiting wheel (5); the rack limiting wheel (5) is used to ensure that the single-mode nylon hard mold rack can be tightly engaged with the second gear (9) when extended or retracted; a second shaft (3) is also provided at the center of the second gear (9); the second shaft (3) is fixedly connected to the housing b (14) and is used to fix the second gear (9); a rack pressure ring (8) is also mounted on the upper end of the second gear (9).

3. The liftable platform according to claim 2, wherein: The rack pressure cover (13) is sleeved on the second gear (9) and sleeved on the second shaft (3) through one end of the shaft pressure cover (12), and is used to fix the rack pressure cover (13) and the second gear (9); the other end of the shaft pressure cover (12) is connected to the housing a (11), and the housing a (11) and the housing b (14) are fixedly connected through the shaft pressure cover (12).

4. A liftable platform according to any one of claims 1 or 3, characterized in that: The transmission device (101) further comprises an external shell, the upper end surface of which is provided with a motor lead hole (1) and a lifting rod connection hole (2), and the lower end surface of the shell is provided with a drone connection base (10).

5. The liftable platform according to claim 1, wherein: The reduction motor (6) has an encoder and a Hall sensor.

6. A drone, characterized in that: The drone has a liftable gimbal as described in any one of claims 1 to 5.

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